Grommet making and setting machine



Dec. 15, 1925- 1,565,523

J. L. STUART GROMMET MAKING AND- SETTING MACHINE Filed July 28. 1924 6 Sheets-Sheet l Even z, 01''.

ft ZKMJJZW. 3L7 WrM Dec. 15,1925. 1,565,523

1 J.-L. STUART GROMMET NAKING'IA ND SETTING MACHINE Filed July 28. 1924 6 Sheets-Sheet 2 r/T zwl 116' MG'W 'Dec. 15 1925 J. L. STUART GROMMET MAKING AND SETTING MACHINE Filed July 28, 1924 6 Sheets-Sheet 3 Jim/enter. am; am. at

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Dec. 15, 1925- J- L. STUART GROMMET MAKING- AND SETTING MACHINE s Sheets-Sheet 4' Filed July 28. 1924 3 3w E I Dec. 15,1925- J. STUART GRO MMET MAKING AND SETTING MACHINE.

Filed July 28. 1924 6 Sheets-Shoot 6 pill:

Event or. *4. 34)! 417.1

' awn Patented Dec. 15, 1925.

P ATEFNT ornice JOH'IT IZENARDSTUARTQOF OAKLAND, CALIFORNIA, ASSIGNOR TO STUART'MACHINE CO., OFSANFRANCISGO,CALIFORNIA, .-A CORPORATION OF CALIFORNIA.

'GROM'MET "MAKING :A'ND 'S'ETTING' 'M'ACHINE.

Application fil (1 111157 28, 1924. i serial No; 728,686.

To all whom it may concern:

. Be it known that'I, 'JOHNIJENARDT STUART,

a citizenof the .UIlitBd States, "residingat 1,249,238 and 1,373,462,? issued respectively December 4th,'1917 and April 5th,:1921.

On account of the featuresiof novelty of the present invention, It am able to provide a'machine which 'operateswith greater accuracyiand speed and: more efficiently than those described in the said patents.

My invention is :herein described and illustrated as embodied in a machine'for making and setting .gronunetsQforthe reason that such is the principalvuse for which it is designed,"but it"will beapparentthat the machine may be readily adapted for the making and setting of other similar objects,such, for example,-'as eyelets,"without involving any material changesrin the essential-features'of the invention, or *departing inz=any d'egree fromihespirit thereof. Moreover, changes, within: the scope of the claims hereto appended,-:1nay 'bezzmadeqin the -for1n::and construction: 0% the .machine, for reasons .of mechanical or :structural practicability,without in any way affecting the principles of the invention.

With thiSJiILViGW," a preferred embodiment of my present inventionwillnow-be fully described with "reference to the accompanying drawings, wherei-n- Fig. 1-.is avertical-section oi -myg'grommet making and setting machine.

%Figs. '2, 3-and 4L1 are-sectionalplam views taken approximately on the lines 2,2, 33 and 4-4 of Fig. 1 respectively.

Figs. 4 and 4 are, respectively detailed 3 vertical and plan' views of the operating mechanism for the lower-setting dies, Fig.

4* being taken on the line L -4 of Fig. 4",

andrFig. 4 ;being taken on tl1e.line.l-4l of Fig. 1.

-Fig.z5;is a partly broken sectional plan, reduced insize, taken, approximately. on the line'5'5 ofFig. l.

:Figu6'is a vertical sectional view of the overrunning clutch mechanism indicated in Figsxl: and 5.

"Figs. 7 ,.'8;13.I1Cl-9. aresectional Views taken respectively in the direction, of the arrows onthe lines 77,-88 and 99-of Fig. 6.

Fig. 10 is a partly broken side elevation ofithedriving clutch mechanism indicated Fig. 11- is-a plan View ofthe same taken on the line 11--11 of Fig. 10.

(Fig. 12, is a plan view of thelower jaw member of the clutch. v

Figs. 13.and 14 are sectional details taken on the line 1314 of Fig. 11, showing the clutch dog in its-two functional positions.

Fig. 15 is a detail vertical section of the clutch dog operating means, and is taken on the line 15l5 ofgFig. 16.

Fig. 16 isa sectional plan view ofthe same taken on the line 1616 of Fig. 15.

Figs. 17-andl8 are diagrams representing, in end elevation, the clutch dog and its operating means in two different positions. 7 I

'Fig. 19 is a vertical section, enlarged, of the, grommet forming die ,5 mechanism, and the grommet strip *feed mechanism.

;,Fig.'20 isa vertical sectional detail of the grommet forming dies, showing their-relative positions: at the moment of forming the grommet.

"Fig.21 is, a sectional plan view, enlarged, ofathegrommet strip feed. mechanism.

EFig; 22. is a vertical section of the same taken on the-line 22.22of Fig; 21.

iF-igs. 23:.and- 24: are; sectional details of the, grommet strip feed-cam, taken on the line 231-24 of Fig. 21, showing: said cam in-two different positions.

Fig-.25 is .a perspective view, enlarged,of the,l grommet stripfeed :cam. Fig. 26 is a-perspective .detail, enlarged, of'therearend of the strip feed arm.

. Fig.2?is, a vertical section of the washerforming die: mechanism and the washerstrip feed mechanlsm.

Fig. 28 is a sectional detail of the washer forming dies, showing their relative positions at the moment of forming the washer.

Fig. 29 is a transverse section of the washer strip guide, taken on the line 29-29 of Fig. 27. 1

Fig. 30 is a plan view of the washerstrip waste guide.

Fig. 31 is a transverse section of the end portion of the washer-strip waste guide,

showing the waste cutting mechanism, and

is taken on the line 3131 of Fig. 32.

Fig. 32 is a longitudinal section of the same taken on the line 3232 of Fig. 31.

Fig. 33 is a part sectional front elevation of the setting dies.

Fig. 34 is a vertical section of the same, taken on the line 3434 of Fig. 33, and enlarged, showing the relative positions of the parts at the beginning of the setting operation.

Fig. 35 is a vertical sectional detail of the setting dies, showing their relative positions after having punched the hole in the material and before setting the grommet therein.

Fig. is a similar view showing the relative positions of the setting dies at the conclusion of the setting operation.

Fig. 37 is a partly diagrammatic sectional view showing the relative positions of the upper setting die, the washer, material, and grommet immediately prior to the setting operation.

Fig. 38 is a sectional detail showing the completed grommet set in the material.

In the drawings, the reference numeral 1 designates a housing which encloses and acts as a supporting frame for the working parts of the machine. The upper portion of said housing is narrowed at one side, as shown at 2, in Figs. 2, 3 and 4, and in this narrowed housing portion there is formed a recess 3, Fig. 1, entering from the outside and forming a channel within which the material to be operated upon can be placed, without interfering with or becoming entangled in the enclosed operating parts of the machine.

In the lower portion of the housing 1 is positioned a suitable power device shown in Figs. 1 and 5 as an electric motor 4. Said motor has a shaft 5, provided with a worm 5, which drives a worm wheel 6, as inclicated in Fig. 5. The worm wheel 6 is freely journaled upon a vertical shaft 7, and is connected therewith by means of an overrunning clutch indicated at 8, in Figs. 1 and 5, and illustrated in detail in Figs. 6 to 9 inclusive. The worm wheel 6 is provided with ratchet teeth 9 upon its upper surface, adapted to engage similar teeth 10 formed upon the lower surface of the member 11, said member being slidably secured by means of a key 12 upon the shaft 7.

ables the shaft 7 to be turned in one direction, by hand, when necessary, as for example, when adjusting or timing the various parts of the machine, without turning the motor 4 and worm gearing 5 and 6.

A fly-wheel 15, Fig. 1, is provided, and is geared to the shaft 7, as shown at 16. Said shaft, which revolves continuously, terminates in a clutch mechanism collectively designated by the numeral 17 in Fig. 1, and which serves to connect said shaft with an axially aligned upper shaft 18. The clutch mechanism 17 comprises a lower disk 19, Figs. 10 and 12, provided with one or more radially disposed grooves 20, there being four such grooves shown in the drawings. Said disk 19 is secured to the shaft 7, as by means of a key 21. An upper disk member 22, Figs. 10 and 11, is secured, as by means of a key 23, to the upper shaft 18,

and is positioned with its lower face ad- I jacent to the upper face of the lower disk member 19. Said upper disk 22 is provided with a diametrically disposed dog 24, pivotally mounted at- 25 for vertical swinging movement into and out of any one of the grooves 20 of the lower disk 19, as shown respectively in Figs. 14 and 13. A spring 26, Fig. 10, serves to press the dog 24 into one of its coacting grooves 20, and when such engagement takes place, the two disks 19 and 22 are compelled to rotate together, thus transmitting power to the upper shaft 18.

The clutch is operated by a latch mechanism collectively designated by the numeral 3 a bolt 33 slidably mounted immediately 3 above said latch member. The latch member 31 has also a vertical swinging movement to enable its lip 32 to free the end of the bolt Under normal conditions, the

latch member 31 is retained in the position I shown in Figs. 15 and 16 by springs 34 and 35, and the bolt 33 is retained in the position shown by a spring 36. In this position the projecting beveled end 37 of the clutch dog 24 rests upon the bolt 33, as indicated in Fig. 17, and said dog is thereby prevented from dropping into one of the grooves 20 of the lower clutch member 19. However, when the latch member 31 is moved toward the right, as viewed in Fig. 15, by means of 1 The cord 28 is connected at its 1 the cord 28 and'treadle 29, the boltf33; is withdrawn from'beneath .the clutch dog 24 and saidf dogj thereupon 7, drops into one of the grooves 29, and causes the two clutch members'to. rotate together. v

The latch member: 31 is provided with an inclined face 38, which'isimmediately engagedby'the end 37 of the released clutch doigl 24, and by such engagement said'latch member is depressed, as indicated in Fig.18.

to cause the lip 32 to free the end of'the bolt 33, thereby allo wingis aid bolt'to return to its normal outwardposition, to bereadyjto raise the clutch'dog 24' out of'thefgroovej 2O uponitsnext revolution. The upper portion of the clutch andthe upper shaft '18 can, therefore, only make one complete revolutionwithout coming to rest, this one revolution being suflicient to complete one cycle ofoperations of the machine. Even the treadle 29 be held down, the ratchetfin'ember 31 will'still' be depressedfas indicated in Fig. 18, by the end 37 of the clutchdog 24, thereby allowing the bolt 33 to return to its normal position ready to raise said dog and release the clutch upon the completion of one revolution thereof. I

The upperfvertic'al shaft 18, Figs l 'and of the drawings, drives, by means of worm gearing indicated at 39, a horizontal shaft 40, uponwhich is fixeda cam 41,"Figs.11,4 and 4 Said cam operates a bifurcated lever 42jf1'1lcru1n-ed at 48, and therearend 'of said lever imparts reciprocating motion .to the'grom'metforming dieshank 44, Fig."1, which is slidably mounted in a fixed guide 45. Said die shank 44 has secured to its upper end a. grommet formingdie "46,; Fig. 19, and a 'slidable sleeve 47 surrounds said die Said sleeve has a limited vertical movement upon the shank '44 and the die 46,. and is normally held at the 'upper limit of its movement by springs 48. A central bore 49 is formed through the die 46 and the shank 44. u 4 I The grommets are initially and partially formed from a "Web or strip of suitable material, such, for example,'as sheet brass. Said strip, numbered 50, may be carried in any desired manner, as, for exam le, upon a spool 51, Fig. 1, suitably mounted at the rear ofthe housing 1, and is fed horizontally and forwardly above the die 46, and between ita'nd a co operating stationary upper die 52, Fig. 19. Said upper die is secured as shown in a horizontal plate member 'of the. housing l, and is' provi ded with a vertically movable clamping sleeve 54, and a stationary central punch 55, the latter being secured to the die 52 by any suitable means, as, for example, a 'pin'5 6 extending through a cap or plug 57 screwedin the upper end of thedie 52, A spring 58 normally retains the slidable clamping sleeve 54 in its lowermost position, as shown.

WVli'enthe lower dief shank 44 is raisedjby the action of the leverf'42fand the cam '41, the die 46' firstdif'aws' out the central'tnbular portion of the grommetfand byte-operation with the fixed upper die 52,forinssaid grommet, but doesnot cut it out from the strip 50. During this gumwnig operation, the central portion of the grommet is clamped between the upper 'end of the lowerdie46 and the lower end ofthe upper 1noyable sleeve"54,"and 'at orfneiar the conclusion ofi'slaid drawing operatio'n the central h'olefin the grommetisp'unche'd by the upper fixed punch entering the bore 49 in the"die 4'6,"asshown in Fig. 20. The lower die then retreats downwardly and the grommet strip 50 is advancedto a new position'rea'dy fort-he partial formation of anew grommet. V

The strip 5Q'is"advanced by means of 'a swi'nging'arm 59, Figs. 19, 21'and 22, which carries adepending pin 60 adapted to enter and engage the upwardly drawn central portions 50 of the partially formed gromme ts. lever 59 is mounted for vertical swinging movementlat 61,Figs. 21 and 22, in a carrier"62,"which is itself mounted for horizontali'swinging movement upon a fulcrum 63. The lever 59 has formed upon it a lug 64, Figs. 21, 22, 23, 24 nd 26,, adap to be engaged both by a face cam and by'a radial cam 66, both'said cams being formed upon a collar 67,Figs. 21, 23, 24 and 25,

secured to the vertical shaft 18 by a key "67,

Fig. 4. 'The rotation of said shaft, therefore, first lifts the lever 59 from, the position shown in. fulllines in Figs. 19 and 2 2, to free its pin 60 from the grommet portion 50 then moves saidlever rearwardly' to' the position'shown in dotted lines in Fig. 21, then allows" said lever to drop to causejits pin IGO'Qto engage the next succeeding gromme portion 5Q,fasindicated in Fig. 19, T'and finally allows saidlever to, be drawn forwarclly to its initial position by a spring68, Fig. .21fthereby advancing the "grom et strip 50 the required distance. A stop 68 is provided to limit the forward movement of said arm 59. t i

The vertical shaft 18 also drives, through the wormgearing69, Figs l and 2,'a horizontal shaft 70 mounted in the upper portion'of the ma'chine and carrying a 'cam71, whichoper at'es a forked lever 72. Said lever is fulcrumed at 73, and itsrear end operates a washer forming die shank 74, mounted for vertical reciprocating movement in 'a guide 75, Fig. 1. :The die shank 74 h'assecured thereto, in any suitable manner, not shown, asleeve 76. die 77 is mounted for limited vertical movement within thef end portion of said sleeve, and is normally held in its lowermost position, as shown, by springs 7 8 A central punch 79,. extfendijng through the die 77 is secured to the shank 74 by any desired means, as, for example, by a pin 80. Thewasher forming die 77 cooperates with a lower stationary die 81 secured as shown in a horizontal portion 82 of the housing 1.

YVhen the die shank 74 is moved clownwardly, by the action of the cam 71, the die 77 cooperates with the fixed die 81 to partially form a washer in a blank or strip 83 of suitable material, as, for example, sheet brass, and at or near the completion of the forming process, the die 77 remaining stationary ant the shank 74 and the central punch 79 continuing their downward movement, said punch is forced through the strip 83 and into a bore 84 formed in the lower fixed die 81, thus punching the central hole 83 in the washer, as shown in Fig. 28. The washer, however, is not punched out of the strip 83. The strip 83 may be carried in any desired manner, as for example, upon a spool 85, Fig. 1, mounted upon the back of the housing 1, and is fed forwardly above the horizontal housing plate 82 and between the dies 77 and 81.

The feeding of the washer strip 83 is accomplished in a manner similar to that of the grommet strip 50 described above. An arm 86, Fig. 3, is mounted upon a pin 87 for vertical swinging movement in a carrier 88, which in turn is mounted. upon a pin 89 for horizontal swinging movement. The lever 86 is provided with a lug 90 adapted to be engaged both by a face cam 91 and by a radial cam 92, both said cams being formed upon a collar 93 secured to the shaft 18 by a key 93. The rotation of said shaft 18 therefore causes the arm 86 to be initial- 1y lifted to free its pin 94, Fig. 27, from the washer strip 83 and then to be moved rearwardly and allowed to drop to cause said pin to engage the next succeeding hole 83' in said strip, and finally to be moved by a spring 95, Fig. 3, forwardly to advance the strip the required distance. A pin 96, Fig. 27, depending from the upper die sleeve 76, is adapted to be moved down into the previously formed hole 83 in the strip 83 to act as a stop in limiting the advance movement of said strip.

The washer strip 83 with the partially formed washers therein is fed through a guide 97, Figs. 1, 3 and 29, said guide having upturned edges, as shown, to overlie the edges of the strip 83. A similar guide 98, Fig. l, is provided for the grommet strip 50. The guides 97 and 98 carry their respective washer and grommet strips to the forward portion of the machine, where they are aligned between the upper and lower setting dies to be presently described.

The cam 71 mounted upon the upper horizontal shaft 70, Figs. 1 and 2, also operates a forked lever 99, fulcrumed at 100, whose forward end imparts reciprocating vertical motion to an upper setting die mechanism slidably carried in a guide 101. Said die mechanism comprises a central shank 102, Fig. 33, which is positively moved by the lever 99, and an outer member 103 which has a limited vertical movement upon said shank, and which is normally held at the lower limit of its movement by springs 104. The lower end of the shank 102, as shown in Fig. 34, is provided with a central punch 105, and a curling or setting die face 106 surrounding said punch. The lower end of the sleeve 103, which normally extends below the die face 106 of the shank 102, is provided with a complementary curling face 107, and also with a cutting edge 107 adapted to coact with a stationary tubular member 108 secured in the fixed housing plate 82, to cut out the washer from its strip 83. The fixed tubular member 108 extends through said plate 82 and carries upon its lower end a slidable clamping member 109. Rods 110, Fig. 33, secured to said clamping member 109, extend upwardly therefrom and are secured to a collar 111 which is connected by cushioning springs 111 with the sleeve 103. A spring 112, Figs. 1 and 34, assists in retaining the clamping member 109 in its uppermost position.

The cam 41, secured upon the lower horizontal shaft 40, operates a double forked lever 113, Figs. 1, 4 and 4 fulcrumed at 114, whose forward end operates the. outer portion of the lower setting die mechanism. Said cam 41 also operates a single forked lever 115, fulcrumed about the pin 114 with its rear forked end lying between the double end of the lever 113, as shown in Fig. 4 A depression 116 is formed in the cam 41, to, permit said lever 115 to have some movement independently of the lever 113. The forward end of the lever 115 operates the inner portion of the lower setting die mechanism. The lever 113 is connected, as shown, with a sleeve 117, Figs. 1 and 33, mounted for vertical sliding movement in a guide 118. The upper end of said sleeve is formed with a curling or setting face 119, as shown in Figs. 35 and 36, to coact with the faces 106 and 107 of the upper die members. The lever 115, Figs. 1 and 33, is connected as shown with a tubular punching member 120 slidably mounted in the sleeve 117. The upper end of said tubular member 120 is formed as shown in Figs. 35 and 36, at 121, to pass through the tubular portion of the grommet and to cooperate with the upper punch 105 to punch the hole in the material 122 in which the grommet is to be set.

The tubular punching member 120 is rotated at a rapid rate by means of a pulley 123 secured thereupon, Figs. 1 and 33, and a belt 124 connecting said pulley with a pulley 125 on the motor shaft 5. A journal said grommet up against the" lower surface ewe- 2.3

126, Fig. 1, is preferably provided for the lower end of the rotating tubular punch member 120."

In the operation of the machine, the material in which the grommet is to be set is placed between the housing plates 82 and 53, and rests upon a fixed clamping block 127. secured to the plate '53, as shown in Fig. 34. The treadle 29 is then depressed causing the clutch 17 to connect the power shaft 7 with the upper operating shaft 18, thereby rotating the latter through one com plete revolution. This revolution of the shaft 18, in addition to partially forming a rommet and a washer in the respective strips and 83, aspreviously described, causes the setting dies to move inthe following manner V The upper die'members 102 and 103, Fig. 34, move downwardly, the outer sleeve member 103 punching out a washer 128ffrom its strip 83 and forcing it down through the tubular guide member 108 on to the top of the material 122.' The clamping member 109 is also moved downwardly by its rods 110 to clamp the material 122 between its lower face and the fixed block 127 At the same time, the lower die members 117 and 120 are moved upwardly, the outer edge 119 of the sleeve 117 cooperating with an aperture 53 in; the plate to punch out the grommet 129 fromits strip 50 and carrying of the material 122. The inner and rotating lower punch 120, moving upwardly and cooperating with the downwardly moving upper punch 105, forms thehole in the ma terial 122,"as shown in Fig. 35, the spinning or rotating of said lower punch member'in sur ing a clean cut hole. The continued upward movement of. the lo'w'erdie' members 1'17"and"12 0"forces the tubular portion 50"- of the grommet 129 through the hole in the material 122' and throughthe aligned hole 83 the washer positioned 'thereabove. The depression116, igi 4 then permits the lower rotating punch 120 to drop slight ly, while the"grommet 129 is forced still further up by the continued upward movev ment of the lower diesleeve 117 the tubular portion ofthe'g'rommet'being initially expanded by the face 106 of the upper central die shank102. The upper face 119 or the lower die s'leeve 117 'nowmeets the lower face 1070f the upper die sleeve 1 03, the

outer or peripheral portions of the grommet 129"aiid the washer 128 being clamped thereb'etwen, andthe material 122 being clampedbetween said grommet and washer. The lower die sleeve 117 now comes to rest and the continued downward motion of the upper die shank. 102, moving down within the upper die sleeve 103 against the compressi'on of the springs 104:, curlsor clinches the initially expanded tubular portion of the grommet 129 over the Washer 128, as illustrated in Fig. 36. The dies then separate and return to their initial positions, and the strips 50 and 83 are advanced by the mechanism above described to present the next partially formed grommet *and washer in alignment with the setting dies, and, to present new portions of said strips to the grommet and Washer forming dies. hen the dies begin to separate, the upper die sleeve 103 is "returned by the springs 10% to its lowermost position upon the shank 102, thereby st'ripping'the set grommet from the face 106 of said shank;

The waste porti'onof the washer strip 83, after the washers have been stamped therefrom, is disposed of in a suitable manner to keep it out of the way of the material being operated upon. For this purpose, I provide a guide channel 130,

Figs. 1 and 30,leading up the 'frontof the housing 1, thence into said housing at its top," and rearwardly therethrough. to its rear, through which the Waste portion of the strip 83 passes. At the 'extreme 'i'ear end of this channel, Iprovide means for cutting the waste strip portion into lengths which will enable its ready disposal; The

waste strip 83' passes through a block 131, Figs. 1, 31 and 32, and in this block operates a sliding knife 132, which is secured by a connection 133 to the upper end of the washer forming die shank 74. Thus at each upward movement of said die shankya length of the waste strip 83 is cut'ofi-and allowed to drop outside the housing 1 to any suitable place of disposal, not shown.

The waste portion of 'thegrommet strip 50 is also cut into lengths by a knife indicated at 134, Fig. 1, connected with the lower setting die sleeve 117 and operating in a block 135 *to1cut the strip 50 -into lengths, such lengthsdr'opping outside theforming dies,-in-the respectiveblank strips 50 and 83, the central'holes beingpunched in both, but said grommet and washer are not cut out from their strips.

(2) The material or' work in which the grommet is to-be set is clamped between the members 109 and 127, thegrommet receiving hole is punched in said work and a previously formed and positioned grommet and washer are stamped out of their respective strips and set in said hole, after which the work is released by said clamping members.

(3) The grommet and washer strips 50 and 83 are advanced, to present fresh surfaces to the forming dies and to present the next partially formed grommet and washer in alignment with the setting dies, and the waste end portions of said strips, from which the grommet and washer have been stamped, are out ofi". The drive shaft 18 then automatically comes to rest until the clutch 17 is again operated, by the treadle 29, to start a new cycle of operations.

I claim 1. In a machine for making and setting grommet members with co-operating washer members, means for supporting a blank having one of said members partially formed therein; means for automatically positioning the other member in setting relation thereto; and means for removing the partially formed member from its blank and setting it with said other member in the work.

2. In a machine for making and setting grommet members with cooperating washer members; means for supporting a strip blank having one of said members partially formed therein; means for removing the partially formed member from its strip; means for advancing said strip to carry the J1 partially iormed member irom the partial forming means to the removing means; means for automatically positioning the other of said members in setting relation to the removed member; and means for setting said members in the work.

8. In a machine for making and setting grommet members with cooperating washer members; means for partially forming one of said members in a blank; means for automatically positioning the other member in setting relation thereto; and means for removing the partially formed member from its blank and setting it with said other member in the work.

4. In a machine for making and setting grommet members with cooperating washer members, means for partially forming one of said members in a strip blank; means for removing the partially formed member from its blank; means for automatically positioning the other of said members in setting relation to the removed member; means for setting said members in the work; and means for advancing said strip to carry the first mentioned member from the partial forming means to the removing means.

5. In a machine for makin and setting grommet members with cooperating washer members, means for supporting and advancing a strip blank having a succession of one of said members partially formed therein; means for successively and automatically positioning the other of said members in setting relation thereto; and means for successively removing the partially formed members from their strip and setting them with said other members in the work.

6. In a machine for making and setting grommet members with cooperating washer members, means for successively partially forming one of said members in a strip blank; means for successively and automatically positioning the other of said members in setting relation thereto; means for successively removing the partially formed members from said strip and setting them with said other members in the work; and means for advancing said strip to carry the first mentioned members from the partial forming means to the removing and setting means.

7. In a machine for making and setting grommet members with cooperating washer members; means for supporting a blank having one of said members partially formed therein; means for forming the other of said members; and means for removing the partially formed member from its blank and setting it with said other member in. the work.

8. In a machine for making and setting grommet members with cooperating washer members, means for partially forming one 01 said members in a blank; means for forming the other of said members; and means for removing the partially formed member from its blank and setting it with said other member in the work.

9. In a machine for the described purpose, means for supporting a strip blank having a succession of grommets partially formed therein; means for successively removing the grommets from said strip and setting them in the work; and a member adapted for swinging movement in two different planes to successively engage the partially formed grommets for advancing said. strip.

10. In a machine for the described purpose, means for partially forming a grommet in a blank strip comprising a lower reciprocating drawing die, an upper fixed die aligned and cooperating with the lower die, a punch carried by said upper die for forming the central hole in the grommet, and a retractable clamping sleeve surrounding said punch for clamping the central portion of the grommet against the lower die during said punching operation; means for removing the partially formed grommet from the strip and setting the same; and means for advancing the strip to carry the grommet from the forming means to the setting means.

11. A machine for the described purpose comprising means for partially forming a grommet in a blank strip; means for partially forming a washer 1n a second blank strip; means for removing said grommet and said Washer from their respective strips and setting the same in the work; and means for advancing said strips to carry the grommet and the washer from the forming means to the setting means.

12. A machine for the described purpose comprising means for partially forming a grommet in a blank strip; means for partially forming a washer in a second blank strip; means. for removing said grommet and said washer from their respective strips and setting the same in the work; and means for advancing said strips in timed relation to carry the partially formed grommet and washer into alignment with the setting means.

Y 13. A machine for the described purpose comprising means for partially forming a grommet in a blank strip; means for partially forming a washer in a second blank strip; means acting simultaneously with said forming means for removing a previously partially formed grommet and washer from their respective strips and setting the same in the work; and means for advancing said strips to carry the partially formed grommet and washer into alignment with the setting means.

14. A machine for the described purpose comprising means forpartially forming grommets successively in a blank strip; means for partially forming washers sucessively in a second blank strip;- means for successively removing the partially formed grommets and washers from their respective strips and setting the same in the Work; and means for advancing said strips to carry the grommets and washers from the forming means to the setting means.

15. In-a machine for the described purpose, means for supporting a blank having a partially formed grommet'therein; means for supporting a second blank having a partially formed Washer therein; and means for removing the grommet and washer from their respective blanks and setting the same in the work.

16. In a machine for the described purpose, means for supporting and advancing a strip blank having a succession of grommets partially formed therein; means for supporting and advancing a second strip blank having a succession of Washers partially formed therein; and means for suc cessively removing said grommets and washers from their respective strips and setting them in the work.

17. In a machine for the described purpose, means for holding a strip blank having a grommet partially formed therein; means for holding a second strip blank having a Washer partially formed therein; means. for advancing said strlp blanks to position the partially formed grommet and Washer in alignment; and means for removing the grommet and washer from their respective strip blanks and setting the same.

grommets and washers from their respective StIIPS. and setting the same in the work; and meansv for advancing said strips. in

timed relation to the movements of the. setting; means.

19. In a machine for the described. purpose, means for holding strip blanks having grommets and washers respectively partially formed therein; means for removing the partially formed grommets and Washers from their respective strips and-,setting'the same inthe work; and reciprocating members adapted to advance said strips by successive engagements therewith to carry the partially formed grommets and washers into alignment with the setting means.

20. In a machine for the described purpose, means for holding a strip blank having a grommet partially formed therein; means for automatically positioning a washer in alignment with the partially formed grommet; means operating through the partially formed grommet and said washer to punch the grommet receiving hole in the work; and means for removing the grommet from its strip and setting it with said washer in said hole. 7

21. In a machine for the described purpose, means for holding strip blanks having grommets and Washers respectively partially formed therein; means operating through the partially formed. grommets and washers for punching the grommet-receiving hole in the work; and means for removing the grommet and Washer from their respective blanks and setting the same in said hole.

22. In a machine for the described purpose, means for holding a strip blank having a partially formed grommet therein; a rotating punch member adapted to form the grommet-receiving hole in the Work; and means cooperating with said punch member for removing the partially formed grommet from the strip and setting the same in said hole.

23. In a machine for the described purpose, means for holding a strip blank having a grommet partially formed therein; a rotating punch member operating through said grommet to form the grommet-receivmg hole in the work; and means cooperating with said punch member for removing the partially formed grommet from its strip and for setting the same in said hole.

24:. A machine for the described purpose, comprising means for forming a grommet; a rotating punch member adapted to form the grommet-receiving hole in the Work; means for carrying the grommet from the forming means into alignment with said punch member; and means cooperating with said punch member for setting the grommet in said hole.

25. A machinefor the described purpose, comprising means for forming a grommet; and associated die mechanism for setting the same comprising a rotating punch member adapted to operate through the grommet in punching the grommet-receiving hole in the work, and means cooperating with said punch member to set the grommet in said hole.

26. A machine for the described purpose, comprising means for forming a grommet; and an associated die mechanism for setting the same comprising a reciprocating and rotating punch member operating through the grommet to punch the grommet-receiving hole in the work, and reciprocating means cooperating with said punch member to set the grommet in said hole.

27. In a machine for the described purpose, means for holding a strip blank having a partially formed grommet therein; reciprocating means adapted to remove the partially formed grommet from said strip; a rotating punch member within said removing means for forming the grommetreceiving hole in the work; and an aligned reciprocating member adapted to cooperate with said removing means and said punch member to set the grommet within said hole.

28. In a machine for the described purpose, means for holding a strip blank having a grommet partially formed therein; means for holding a second strip having a washer partially formed therein; means for aligning the partially formed grommet and washer; reciprocating means for removing the washer from its strip; a rotating punch member operating through said grommet to form the grommet-receiving hole in the work; and a reciprocating member for removing the washer from its strip, said member cooperating with the grommet-removing means and the punch member to. set the grommet and washer in said hole.

29. In a machine for the described purpose, means for holding strip blanks having a grommet and a washer respectively partially formed therein; means for removing the partially formed grommet and washer from their respective strip blanks and set ting them in the work; and means for clamping the work in position during the setting operation.

30. In a machine for the described purpose, means for clamping the work; means for positioning blanks having a washer and a grommet respectively partially formed therein in alignment with said clamping means; and means for removing the washer and grommet from their respective blanks, carrying them through said clamping means, and setting them in the work.

31. A machine for the described purpose comprising means for forming a grommet and a cooperating washer therefor; means for setting the same in the work; means for clamping the work in position during the setting operation; and means for transferring the grommet and washer from. the forming means to the setting means.

32. A machine for the described purpose, comprising means for forming a grommet and a cooperating washer therefor; means for clamping the work; and means operating through said clamping means to set the grommet and washer in the work.

In testimony whereof I have signed my name to this specification.

JOHN LENAR-D STUART. 

